Unit 7 Questions

Name ______Period ______Score ______

Unit 7 Questions

1. What does the word echinoderm mean? ______
2. Where do echinoderms live? ______
3. Where can echinoderms NOT live? ______and ______
4. What type of symmetry do echinoderms have? ______what does that

mean? ______

1. What is the exoskeleton of an echinoderm made out of? ______
2. What 3 organs does an echinoderm NOT have? ______
3. What sensory organs do some echinoderms have? ______
4. The top of an echinoderm is called the ______surface and the bottom is called the

______surface.

1. What 3 purposes does the water-vascular system serve? ______
2. Where are the tube feet of an echinoderm located? ______
3. What creates the suction in the tube feet? ______
4. What 3 types of feeders are echinoderms? ______
5. What does nocturnal mean? ______
6. What are 2 body parts echinoderms can regenerate? ______
7. What is spawning? ______
8. What type of asexual reproduction do echinoderms have? ______
9. How are the larvae different than the adult echinoderms? ______
10. What are the larvae of echinoderms called? ______
11. Starfish are in class ______, sea cucumbers are in class ______,

sea urchins and sand dollars are in classs ______, feather stars are in class

______and brittle stars are in class ______.

1. Where are starfish found? ______
2. The arms of sea stars are found in multiples of _____
3. How is the body plan of a sea star different than that of a basket star?

______

1. What is the madreporite for? ______
2. Where are the tube feet of a sea star located? ______
3. Sea cucumbers can be found in ______to ______
4. A sea cucumbers body is ______, ______and ______
5. What are the tube feet of a sea cucumber modified into? ______
6. How does a sea cucumber breathe? ______and ______
7. How does a sea cucumber feed? ______

1. What defense do sea cucumbers have? ______and ______
2. What is sea cucumber poison used for in medical research? ______
3. What is self-evisceration? ______
4. Where do sea urchins live? ______
5. What is the exoskeleton of a sea urchin called? ______
6. What 3 things are the spines of a sea urchin used for? ______
7. What 3 things are the tube feet of a sea urchin used for?

______

1. What are pedicellarines? ______
2. What is another name for the Aristotle’s lantern in a sea urchin or sand dollar? ______
3. What does the podia do? ______
4. What are 5 things sea urchins will eat? ______
5. Sand dollars are shaped like ______
6. Where do sand dollars live? ______
7. What are cilia used for in sand dollars? ______
8. How do sand dollars move across the sea floor? ______
9. What are lunules? ______
10. What is the purpose of lunules in a sand dollar? ______
11. What are pedalloids? ______
12. What is the purpose of pedalloids in a sand dollar? ______
13. Where are the tube feet of a sand dollar found? ______
14. What 2 structures aid in the sand dollars respiration? ______